.nav{
        margin-top: 30px;
        
        float: left;
        width: 272px;
        h2{
            height: 54px;
            width: inherit;
            background: #330000;
            color: #fff;
            text-align: center;
            line-height: 54px;
            
        }
        ul{
           width: 270px;
            border:{
                left: 1px solid #e4e4e4;
                right:1px solid #e4e4e4;
            }
            li{
               width: 178px;
                padding-left: 92px;
                line-height: 55px;
                border-bottom: 1px dashed #cfcfcf;
                a{
                    color:#000000;
                    font-size: 16px;
                    
                    span{
                        display: inline-block;
                        margin-right: 10px;
                    }
                }
                div{
                width: 270px;
                border-top:1px dashed #cfcfcf ;
                margin-left: -92px;
                display: none;
                a{
                    margin-left:102px;
                    display: block;
                    line-height: 20px;
                    color: #999999;
                    font-size: 12px;
                    display: block;
                    
                    span{
                        width: 2px;
                        height: 2px;
                        display: inline-block;
                        vertical-align: middle;
                        
                        margin-right: 4px;
                        background: url(../images/user/images/biaoqian_06.jpg) no-repeat center;
                    }
                    &:hover{
                        color: #CC0000;
                    }
                }
                .ons{
                    color: #CC0000;
                    text-decoration: underline;
                  }
            }
             .on{display: block;}   
            }
            .active{
                
                &>a{
                    color:#cc0000;
                    
                }
            }
        }
    }